English translation
[4165] 2 - (...) It was narrated from 'Umar that he donated a horse (to be ridden in Jihād) in the cause of Allāh, and he found it with its owner who had neglected it. He was of poor means and 'Umar wanted to buy it, so he went to the Messenger of Allāh ﷺ and told him about that. He said: "Do not buy it, even if he gives it to you for a Dirham, for the likeness of the one who takes back his charity is that of the dog who returns to his vomit."
